Has anyone gotten Facebook sdk for Unity to run on Android recently??

Full details here...
https://stackoverflow.com/questions...class-com-facebook-facebookcontentprovider-an

How to replicate this error...

* Create a new Unity project.
* Import the facebook sdk unitypackage
* Set your App Id for facebook via Facebook\Edit Settings
* Using Assets\External dependency manager\Android, press 'Resolve dependencies', then press 'delete resolved libraries' (otherwise the build will fail at the gradle stage)
* Build and run.
* When the app tries to run I immediately get the error message on my phone 'app has stopped working'
and see this error in the logs ...

Caused by: java.lang.ClassNotFoundException: Didn't find class "com.facebook.FacebookContentProvider" on path: DexPathList[[zip file "/data/app/com.SandwichGeneration.MakeASquare--nLEHpzOYlwW6XKmGzPfIw==/base.apk"],nativeLibraryDirectories=[/data/app/com.SandwichGeneration.MakeASquare--nLEHpzOYlwW6XKmGzPfIw==/lib/arm64, /data/app/com.SandwichGeneration.MakeASquare--nLEHpzOYlwW6XKmGzPfIw==/base.apk!/lib/arm64-v8a, /system/lib64, /system/vendor/lib64]]

Suggested fixes I've tried [from here][1]
1. I've tried different combinations of old or new facebook sdks and old or new versions of Unity.
2. I've tried building from a few different machines to different Android devices.
3. I've deleted the external dependency manager included with the facebook sdk and used [this one][2] instead. In order to get this one to resolve I had to set a 'Custom Gradle Properties Template'in the player setting under publishing settings.
4. I've set a Custom Proguard file'in the player setting under publishing settings, and I added the following two lines to the file..

-keep class com.facebook.internal.* {*;}
-keep class com.facebook.* {*;}

So I've tried all the suggested fixes and various combinations thereof. I dont know what more I can do. Can anyone suggest anything else to try?


[1]: https://github.com/facebook/facebook-sdk-for-unity/issues/393
[2]: https://github.com/googlesamples/unity-jar-resolver

 

I found a solution.. I posted it as answer to SO question

 

link please